WO2020211386A1

WO2020211386A1 - Foldable treadmill

Info

Publication number: WO2020211386A1
Application number: PCT/CN2019/121655
Authority: WO
Inventors: 柯赛
Original assignee: 柯赛
Priority date: 2019-04-19
Filing date: 2019-11-28
Publication date: 2020-10-22
Also published as: CN210114776U

Abstract

Provided is a foldable treadmill, comprising: a front section; a rear section; and at least one rotating mechanism connecting the first section with the second section. The foldable treadmill is characterized in that the rotating mechanism comprises a first shaft fixedly installed at the front section, a second shaft fixedly installed at the rear section, a first gear fixedly provided at the first shaft, and a second gear fixedly provided at the second shaft, and that meshing of the first gear and the second gear enables the front section and the second section to be stacked one above the other.

Description

Folding treadmill

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the China Patent Office on April 19, 2019, with the application number 201920543892.8 and the name of the invention as a folding treadmill. The entire content of this application is hereby incorporated by reference into this application .

Technical field

The invention belongs to the field of treadmills, and particularly relates to a folding treadmill.

Background technique

Treadmill is a standing fitness equipment, which is changed according to the principle of transmission belt. However, the commercially available treadmill has a relatively large volume, and the storage is unchanged when it is used in a home, and it is not convenient to carry.

CN207769063U discloses a treadmill, the treadmill as a whole includes a front treadmill and a rear treadmill, the rear end of the front treadmill and the front end of the rear treadmill are hinged by a hinge mechanism, and the front treadmill and the rear treadmill The angle between the platforms can be adjusted. When the treadmill is in a non-working state, the front treadmill and the rear treadmill can be folded. The front treadmill can be folded on the rear treadmill or the rear treadmill can be folded on. Above the front treadmill, in this way, the storage area is greatly reduced; when the treadmill is in working condition, open the front treadmill and the rear treadmill. At this time, the front treadmill and the rear treadmill are in the same horizontal plane, that is, the angle between them It is 180°; however, as shown in Figure 1, the hinge structure adopted has a large hinge joint, and when folded, its rear end has a protruding hinge structure. First of all, this protruding hinge structure has certain restrictions on storage Secondly; secondly, the protrusion of the hinge mechanism is easy to scratch the storage environment, which poses a threat to safety; finally, when the front treadmill or the rear treadmill is rotating, its rotation resistance is difficult to control, and the operator It is difficult to control the folding process.

Summary of the invention

The present invention provides a folding treadmill, which comprises a front treadmill, a rear treadmill, and at least one set of pivoting mechanisms connecting the front treadmill and the rear treadmill, characterized in that: the pivoting mechanism includes

The first axle, which is fixedly installed on the front treadmill;

The second axle, which is fixedly installed on the rear treadmill;

The first gear, which is fixedly arranged on the first shaft;

The second gear, which is fixedly arranged on the second shaft;

Through the cooperation of the first gear and the second gear, either one of the front treadmill and the rear treadmill can be folded above the other.

Preferably, an intermediate gear set is rotatably installed between the first gear and the second gear, and the mutual folding between the front treadmill and the rear treadmill is achieved through the first gear, the intermediate gear set and the second gear Order meshing is achieved.

Preferably, the intermediate gear set includes at least a first intermediate gear and a second intermediate gear; the first intermediate gear meshes with the first gear and the second intermediate gear, and the second intermediate gear further engages with the second intermediate gear. Gear meshing.

Preferably, the pivoting mechanism further includes a gear box, the two sides of the gear box are pivotally connected to the rear end of the front treadmill and the front end of the rear treadmill respectively, and the rotation of one of the front treadmill and the rear treadmill drives the gear box Rotation

The first gear, the central gear set and the second gear are housed in the gear box in sequence.

Preferably, a folding space is reserved between the rear end of the front treadmill and the front end of the rear treadmill.

Preferably, the first shaft pivot is fixedly installed in the rear end area of the front treadmill after passing through the gear box, and the second shaft pivot is fixedly installed in the front end area of the rear treadmill after passing through the gear box; the gear box At least two central shafts are installed inside for the rotatable installation of the intermediate gear set.

Preferably, the rear end of the front treadmill is provided with a front connecting seat, and the front end of the rear treadmill is provided with a rear connecting seat. The rear connecting seat and the front connecting seat structure cooperate to allow the front treadmill to be in the rear treadmill. One can rotate towards the other; the front connecting seat and the rear connecting seat integrally form a receiving slot for the gear box to pivot in it; the first shaft pivots through the gear box and both ends are fixed in the front connecting seat; The second shaft pivot passes through the rear end of the gear box and is fixed in the rear connecting seat.

Preferably, the first shaft and the second shaft are non-circular shafts; the first gear and the second gear have non-circular holes matching the non-circular shaft, and the front connecting seat and the rear connecting seat Both ends of the upper have a non-circular hole that matches the non-circular shaft; the first shaft is fitted in the non-circular hole of the first gear, and its two ends are fitted in the non-circular hole of the front connecting seat The second shaft is fitted in the non-circular hole of the second gear, and its two ends are fitted in the non-circular hole of the connecting seat.

Preferably, one of the front connecting seat and the rear connecting seat has a positioning step, and the other of the front connecting seat and the rear connecting seat has a positioning boss limited by the positioning step, and the front treadmill and the rear treadmill are formed by When the open state is converted to the folded state, the positioning boss can be removed from the positioning step.

Preferably, the treadmill includes two pivoting mechanisms, and the two pivoting mechanisms are symmetrical with respect to the central axis of the front treadmill.

Preferably, the rear area of the front treadmill is divided into two side areas a and a central area a, and the two side areas a are recessed relative to the central area a toward the front end of the front treadmill. Forming a notch a, both of which are arranged with a front connecting seat;

The front area of the rear treadmill is divided into two side areas b and a central area b, and the two side areas b are recessed toward the rear end of the rear treadmill relative to the central area b to form a recess. Port b, both of the two notches b are arranged with rear connecting seats;

The rear end of the central area a is against the front end of the central area b, and the rear end of the front connecting seat is against the front end of the rear connecting seat;

The front connecting seat and the rear connecting seat respectively form a slot a and a slot b; the slot a and the slot b are opposite to each other and integrally form a receiving slot for the gear box to pivot in it

The front connecting seat and the rear connecting seat are positioned and matched with the positioning boss through the positioning step, and during the folding process, the positioning boss can release the cooperation with the positioning step;

The front connecting seat is provided with a first mounting hole a and a second mounting hole a opposite to each other, the two side walls of the gear box are provided with corresponding first pivot holes a and second pivot holes a, and the first mounting hole a , The second mounting hole a, the non-circular hole a, and the first pivot hole a and the second pivot hole a are arranged concentrically, and the first shaft is fitted inside;

The rear connecting seat is provided with a first mounting hole b and a second mounting hole b opposite to each other, the two side walls of the gear box are provided with corresponding first pivot holes b and second pivot holes b, and the first mounting hole b , The second mounting hole b, the non-circular hole b, and the first pivot hole b and the second pivot hole b are arranged concentrically, and the second shaft is fitted inside;

The first shaft and the second shaft extend in a direction parallel to the width of the front treadmill, and the gear box is provided with a first central shaft and a second central shaft parallel to the first shaft and the second shaft. The first sun gear and the second sun gear respectively pivot through the first central shaft and the second central shaft.

The present invention also provides a treadmill, which comprises the above-mentioned folding treadmill.

Compared with the prior art, the present invention has the following beneficial effects:

1. The connection structure provided by the present invention makes one of the front treadmill and the rear treadmill fold over the other, and the storage area is greatly reduced;

2. While the pivoting mechanism provided by the present invention realizes folding, there is no pivoting mechanism protruding from the treadmill, and its storage volume is further reduced and the safety factor is improved, without scratching the external environment;

3. The connection structure provided by the present invention significantly reduces the gap between the front treadmill and the rear treadmill, improves running comfort, and reduces post-processing costs.

4. The pivot mechanism provided by the present invention adopts a gear transmission mechanism, has suitable rotation resistance, can be controlled in operation, has improved safety, and the treadmill is not easily damaged.

Description of the drawings

Fig. 1 is a schematic diagram of a folded state of a folding treadmill disclosed in the prior art;

Figure 2 is a schematic structural diagram of a folding treadmill provided by the present invention;

3 is a schematic diagram of the split structure of the folding treadmill provided by the present invention;

4 is a schematic diagram of the meshing of the first gear, the intermediate gear set and the second gear provided by the present invention;

Figure 5 is a schematic view of the structure of the front connecting seat and the rear connecting seat provided by the present invention

Figure 6 is a cross-sectional view of the pivot mechanism provided by the present invention;

Figure 7 is a cross-sectional view of the front connecting seat and the gear box provided by the present invention;

Figure 8 is a cross-sectional view of the gearbox provided by the present invention in the direction of a;

Figure 9 is a schematic diagram of the folding process provided by the present invention.

detailed description

The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention, but should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "front end", "rear end", "front side", "rear side", "side", "upper", "lower", etc. indicate the orientation or positional relationship Based on the orientation or positional relationship shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot It is understood as a limitation of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more than two unless specifically defined otherwise.

In the present invention, unless otherwise clearly defined and defined, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. , Or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meaning of the above-mentioned terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise clearly defined and defined, the "above" or "below" of the first feature of the second feature may include the first and second features in direct contact, or may include the first and second features Not in direct contact but through other features between them. Moreover, the "above", "above" and "above" the first feature on the second feature includes the first feature directly above and diagonally above the second feature.

In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

As shown in Figure 2, the present invention provides a treadmill folding treadmill. Figure 1 shows a schematic structural diagram of the treadmill in an open state. The treadmill includes a front treadmill 1, a rear treadmill 2, and at least one The pivot mechanism 3 connecting the front treadmill and the rear treadmill is set. In the open state, the included angle between the front treadmill and the rear treadmill is 180°; referring to Figure 3, the pivot mechanism 3 includes: a first shaft 31 , Which is fixedly installed on the front treadmill 1; the second shaft 32, which is fixedly installed on the rear treadmill 2; the first gear 33, which is fixedly arranged on the first shaft 31; the second gear 34, which is fixedly arranged on On the second shaft 32; through the cooperation of the first gear 33 and the second gear 34, either one of the front treadmill 1 and the rear treadmill 2 can be folded above the other. The gear assembly provided by the present invention provides a folding process The rotation resistance in the middle, the controllability of the operation is enhanced, and the gap between the front treadmill and the rear treadmill is reduced, which improves the comfort of running.

In some preferred embodiments of the present invention, in conjunction with Figures 3 and 4, the pivoting mechanism further includes an intermediate gear set 35, which is rotatably mounted between the first gear 33 and the second gear 34. The first gear 33. The intermediate gear set 35 meshes with the second gear 31 in sequence; the rotation of one of the front treadmill 1 and the rear treadmill 2 passes through the first gear 33, the intermediate gear set 35 and the second gear 33 mesh in sequence, The angular velocity is transmitted, and the central gear set can prevent the wheel diameter of the first gear and the second gear from being too large. If the wheel diameter protrudes from the treadmill itself, the running comfort is reduced, the overall design is not smooth, and the safety is not high. Defect, therefore, the present invention adopts an intermediate gear set to transmit angular velocity; specifically, the intermediate gear set 35 includes at least a first intermediate gear 351 and a second intermediate gear 352, the first intermediate gear 351 and the first gear 33 and the first intermediate gear The two intermediate gears 352 mesh, and the second intermediate gear 352 further meshes with the second gear 34; it is understandable that multiple even gear sets can also be arranged, but too many gear sets will cause the front treadmill to interact with The connection gap between the rear turrets is too large to realize the seamless connection of the central area between the front treadmill 1 and the rear treadmill 2, which greatly reduces the comfort of running.

In some preferred embodiments of the present invention, as shown in FIGS. 1-7, in order to accommodate the above-mentioned first gear, second gear, and sun gear set, the pivot mechanism provided by the present invention further includes a gear box 36. The two sides are respectively pivotally connected to the rear end of the front treadmill 1 and the front end of the rear treadmill 2, so that the rotation of one of the front treadmill 1 and the rear treadmill 2 will drive the rotation of the gear box 36; as shown in Figure 4 The first gear 33, the first intermediate gear 351, the second intermediate gear 352, and the second gear 34 are sequentially housed inside the gear box. The gear box provided by the present invention conceals each gear and other components therein. The design is aesthetically pleasing and safety is improved. In addition, it is set at the junction of the front treadmill and the rear treadmill as a pivot body, and rotates as the front treadmill or the rear treadmill rotates.

The invention can adopt a variety of installation structures to combine and install the gear box, the first shaft, the first gear, the second shaft, the second gear and the central gear set, so as to realize the mutual folding of the front treadmill and the rear turret through gear meshing transmission In one of the preferred embodiments, the present invention provides a mounting mechanism, which is specifically: as shown in Figures 3, 6, and 8, the first shaft 31 pivots through the gear box 36 and then is fixedly installed In the rear end area of the front treadmill 1, the second shaft 32 pivots through the gear box 36 and then is fixedly installed in the front end area of the rear treadmill 2; and in order to rotatably install the first intermediate gear 351 and the second intermediate gear 352 Inside the gear box 36, a first central shaft 8 and a second central shaft 9 are installed in the gear box 36, the first intermediate gear 351 pivots through the first central shaft 8, and the second intermediate gear 352 pivots through Through the second intermediate shaft 9; further, as shown in Figures 3 and 5, the first shaft 31 and the second shaft 32 are both square shafts (non-circular shafts), as shown in Figure 4, the The first gear 33 and the second gear 34 respectively have a non-circular hole (square hole) a 331 and a non-circular hole (square hole) b 341 penetrating through and matching the non-circular shaft. The first shaft 31 and the second shaft 32 are fitted in the square hole a331 and the square hole b 341, respectively. Thus, the first gear 33 and the second gear 34 respectively form a positioning fit with the first shaft 31 and the second shaft 32, because the first shaft 31 and The second shaft 32 is fixedly connected to the front treadmill 1 and the rear treadmill 2. Therefore, the first gear 33 and the second gear 34 are also fixedly connected with the front treadmill 1 and the rear turret 2, so that the first gear 33, The first shaft 31 and the front treadmill 1 form an integral fixed structure, and the second gear 34, the second shaft 32 and the rear treadmill 2 form an integral fixed structure.

In some preferred embodiments of the present invention, the first gear 33, the second gear 34 and the intermediate gear set 35 are in position-limiting cooperation with the gear box 36. Referring to FIG. 8, the first gear 33 faces both sides on its inner side. Extend a first circumferential blocking wall 332 that cooperates with the gear box, and the second gear 34 extends from its inner side toward both sides with a second circumferential blocking wall 342 that cooperates with the gear box. A first limiting step 363 and a second limiting step 364 are formed in the interior of the first circumferential blocking wall 332 and the second circumferential blocking wall 342 to ensure the first gear 33 and the second gear 34 Install the inside of the gear box.

It can be understood that the first intermediate gear and the second intermediate gear rotate with the rotation of the treadmill without displacement in other directions. Specifically, the two sides of the gear box can be opposed to the inside of the gear box to prevent displacement. The blocking effect can also be offset against the protrusion formed inside the gear box; the specific structure is: the gear box 36 has a circumferential wall 365 and two side walls (the first side wall 366 and the second side wall 367), wherein, The first side wall 366 and/or the second side wall 367 are detachably coupled to both sides of the circumferential wall 365, and the first side wall 366 and the second side wall 367 extend correspondingly toward the first intermediate gear 36. The first protrusion 368 and the second protrusion 369 of the two side walls extend toward the second intermediate gear 36, and the third protrusion 370 and the fourth protrusion 371 are opposite to each other. The first protrusion 368 and The second protrusion 369 abuts against both ends of the first intermediate gear 351, and the third protrusion 370 and the fourth protrusion 371 abut against both ends of the second intermediate gear to avoid the first intermediate gear and the second intermediate gear. The displacement towards the two side walls of the gearbox ensures that there is only pivoting movement and no lateral displacement.

It is understandable that in order to ensure the folding and turning between the front treadmill 1 and the rear treadmill 2, referring to Figures 1 and 5, a folding space 5 is reserved between the rear end of the front treadmill and the front end of the rear treadmill. .

In some preferred embodiments of the present invention, as shown in FIGS. 3 and 5, the rear end of the front treadmill 1 has a front connecting seat 37, and the front end of the rear treadmill is provided with a rear connecting seat 38. The rear connecting seat and the front connecting seat structure cooperate to allow one of the front running platform and the rear running platform to rotate toward the other; the cutting plane a 110 formed by the rear side of the front connecting seat and the cutting plane b 210 formed by the front side of the rear connecting seat Cooperate to form a folding space 5. As shown in FIG. 6, the front connecting seat 37 and the rear connecting seat 38 integrally form a accommodating slot 300 for the gear box 36 to pivot in. It can be understood that the front treadmill and the rear treadmill are located At the same horizontal plane, the upper surface of the gear box 36 does not protrude from the horizontal plane, and is preferably flush with the horizontal plane; as shown in FIG. 7, the first shaft 31 pivots through the gear box 36 and the two ends are fixed in the front connecting seat 37 The second shaft 32 pivots through the gear box 36 and both ends are fixed in the rear connecting seat 38; further, referring to Figure 8, the two side walls of the gear box 36 are provided with pivot holes for the first shaft 31 and The second shaft 32 is pivoted through, so that when one of the front running board and the rear running board rotates toward the other, the gear box thereof will pivot with the rotation of one of them.

Furthermore, as shown in FIG. 6, the front connecting seat 37 has a positioning step 371, and the rear connecting seat 38 has a positioning boss 381 limited by the positioning step 371. The front treadmill 1 and the rear treadmill 2 When changing from the open state to the folded state, the positioning boss 381 can be removed from the positioning step 371 to release the limit coordination. Referring to FIG. 4, the positioning boss and the positioning step have a matching taper design. At this time, It is convenient to cooperate with the limit and release the limit to ensure the smoothness of the folding operation.

In this embodiment, the treadmill includes two pivoting mechanisms, and the two pivoting mechanisms are symmetrical with respect to the central axis of the front treadmill. As shown in FIG. 1, the two pivoting mechanisms are located on the front treadmill. And the side area of the rear treadmill; the present invention provides a preferred treadmill structure. With reference to Figures 1 and 2, the rear area of the front treadmill can be divided into two side areas 12, 13(( The first side area a 12, the second side area a 13)) and the central area a 11, the first side area a and the second side area a are formed on both sides of the central area a, the two The side areas a 12, 13 are recessed toward the front end direction relative to the central area a 11 to form notches a 121, 131, and the two notches a 121, 131 are fixedly arranged with a front connecting seat 37;

The front side area of the rear treadmill can be divided into two side areas b 22, 23 (first side area b 22, second side area b 23) and a central area b 21, the first side area b. The second side area b is formed on both sides of the central area b, and the two

side areas b

22, 23 are recessed toward the rear end direction relative to the central area b 21 to form

notches b

221, 231, The two notches b221 and 231 are both fixedly arranged with a rear connecting seat 38;

The rear end of the central area a 11 is opposed to the front end of the central area b21, and the rear end of the front connecting seat 37 is opposed to the front end of the rear connecting seat 38. Preferably, the interference formed between the central area a 11 and the central area b21 The seam is on the same axis as the abutting seam formed between the front connecting seat 37 and the rear connecting seat 38.

The front connecting seat 37 has a mounting base a 371, a back plate a 372 formed above the mounting base a 371, and a first side plate a373 and a second side plate a374 formed on both sides of the back plate a372. The side plate a373, the second side plate a374, and the back plate a372 are combined to form a slot a 377, and the mounting base a371 is formed with a positioning step 370 toward the rear connecting seat.

The rear connecting seat 38 has a mounting base b381, a back plate b382 formed above the mounting base b381, and a first side plate b383 and a second side plate b384 formed on both sides of the back plate b382. The side plate b383, the second side plate b384, and the back plate b382 are combined to form a slot b387. The mounting base b381 is formed with a positioning boss 380 facing the front connecting seat, and the positioning boss 380 is positioned and matched with the positioning step 370.

Wherein, the slot a and the slot b are arranged opposite to each other, and an accommodating slot 300 is formed integrally for the gear box 36 to pivot in it.

In detail, with reference to FIGS. 3, 4 and 6, the first side plate a 373 and the second side plate a 374 are formed with corresponding first mounting holes a 375 and second mounting holes a 376, and the first gear 33 is formed There is a non-circular hole a 331 passing through it. The two side walls of the gear box 36 are provided with a first pivot hole a 361 and a second pivot hole a 362 that are concentric with the non-circular hole a 331. The first mounting hole a 375, The second mounting hole a 376, the non-circular hole a 331, and the first pivot hole a 361 and the second pivot hole a 362 are arranged concentrically. See FIG. 6, the first shaft 31 passes through the non-circular hole a 331 of the first gear. The rear pivot passes through the first pivot hole a 361 and the second pivot hole a 362, and its outer end is fixed in the first mounting hole a 375 of the first side plate a 373 by a fastener 6 (screw), and its The end on the inner side is inserted into the second mounting hole a 376. It can be understood that the first mounting hole a near the outer side is a fastening hole, such as a screw hole, and the second mounting hole a near the inner side is non-circular. In this way, the hole is in position-limiting fit with the square first shaft 31 to prevent the first shaft from being removed from the front connecting seat.

In order to install the second shaft, the same structure as described above is adopted. Specifically, the first side plate b 383 and the second side plate b 384 are formed with corresponding first mounting holes b 385 and second mounting holes b 376. The second gear 34 is formed with a non-circular hole b 341 penetrating therethrough, and the gear box 36 is provided with a first pivot hole b363 and a second pivot hole b (not shown in the figure) that are concentric with the non-circular hole b 341. The mounting hole b 385, the second mounting hole b 376, the non-circular hole b 341, and the first pivot hole b363 are arranged concentrically with the second pivot hole b, and the second shaft 32 passes through the non-circular hole b 341 of the second gear 34 The rear pivot passes through the first pivot hole b 363 and the second pivot hole b; and its outer end is fixed in the first mounting hole b 375 of the first side plate b 383 by a fastener 7 (screw); One end of the inner side is inserted into the second mounting hole b376; ((not shown in the figure, see Figure 6 for the mating relationship), it can be understood that the first mounting hole b near the outer side is a fastening hole, such as For the screw hole, the second mounting hole b near the inner side is a non-circular hole, so as to limit the fit with the square first shaft 32 to prevent the second shaft from being removed from the front connecting seat.

The first central shaft 8 and the second central shaft 9 are both circular shafts fixedly installed inside the gear box 36, and the first intermediate gear 351 and the second intermediate gear 352 are provided with a first pivot hole penetrating therethrough 353. The second pivot hole 354, the first central shaft 8 pivots through the first pivot hole 353, and the second central shaft 9 pivots through the second pivot hole 354.

As shown in Figure 3, the first central shaft 8 and the second central shaft 9 are circular shafts; the first shaft 8 and the second shaft 9 extend in a direction parallel to the width of the front treadmill 1, and the gear box A first central axis 8 and a second central axis 9 parallel to the first axis 8 and the second axis 9 are provided in 36.

In addition, the cross section of the gear box provided by the utility is elliptical. When the front treadmill and the rear treadmill are in working condition, the upper surface of the front treadmill, the rear treadmill and the gear box are in the same horizontal plane, which is relative to the current treadmill. With a designed hinge mechanism, the present invention uses a gear assembly to make the surface of the treadmill free of protruding parts, smooth the surface, improve running comfort, and reduce post-processing costs; in addition, the circumferential wall of the gear box is connected with the front connecting seat and the rear The acting surface of the seat forms an arc surface, the entire rotating operation process is smoother, and the noise is lower; it can also be circular or waist-shaped, allowing it to pivotally operate and can accommodate gears.

The treadmill provided by the present invention can fold the front treadmill on the rear treadmill, or fold the rear treadmill on the front treadmill. Based on the front side of the front treadmill, a control device is generally required, so Generally, those skilled in the art will choose to set the rear treadmill on the front treadmill. Figure 9 shows the folding process of the treadmill provided by the present invention:

1. Schematic diagram of the folding process of the front treadmill and the rear treadmill 1

As shown in the left figure of Figure 9a, when the treadmill needs to be folded, the external force is given to the rear treadmill 2 in the direction shown in the figure, and the positioning boss is removed from the positioning step. When the rear treadmill is raised, because The second gear connected to it is an integrated structure. At this time, the second gear transmits the angular velocity generated when the rear treadmill is raised through two intermediate gears. The front treadmill does not move, and the rear treadmill and the front treadmill A reaction force is formed, and at the same time, the rear treadmill will also drive the gear box upward, and the upward movement of the gear box will be synchronized with the folding of the rear treadmill under the action of the gear.

2. Schematic diagram of the folding process of the front treadmill and the rear treadmill 1

During the folding process, the angle between the rear treadmill and the front treadmill gradually decreases, and the angle between the gearbox and the treadmill gradually decreases under the drive of the rear treadmill.

3. Schematic diagram of the folding state of the front treadmill and the rear treadmill;

The rear treadmill overlaps the front treadmill. At this time, the angle between the rear treadmill and the front treadmill is 0°, and the angle between the gear box and the treadmill is 90°.

The treadmill provided by the present invention is applied to a treadmill, and the type of the treadmill may be, for example, the treadmill disclosed in CN207769063U.

The above content described in this specification is merely an illustration of the present invention. Those skilled in the technical field of the present invention can make various modifications or additions to the specific embodiments described or substitute similar methods, as long as they do not deviate from the content of the description of the present invention or exceed the scope defined by the claims. , Should belong to the protection scope of the present invention.

Claims

A folding treadmill, which comprises a front treadmill, a rear treadmill, and at least one set of pivoting mechanisms connecting the front treadmill and the rear treadmill, characterized in that: the pivoting mechanism includes

The first axle, which is fixedly installed on the front treadmill;

The second axle, which is fixedly installed on the rear treadmill;

The first gear, which is fixedly arranged on the first shaft;

The second gear, which is fixedly arranged on the second shaft;

Through the cooperation of the first gear and the second gear, either one of the front treadmill and the rear treadmill can be folded above the other.
The folding treadmill treadmill according to claim 1, characterized in that: an intermediate gear set is rotatably installed between the first gear and the second gear, and the distance between the front treadmill and the rear treadmill is The mutual folding is achieved through the meshing of the first gear, the intermediate gear set and the second gear in sequence.
The folding treadmill treadmill according to claim 2, wherein the intermediate gear set includes a first intermediate gear and a second intermediate gear; the first intermediate gear and the first gear and the second intermediate gear The intermediate gear meshes, and the second intermediate gear further meshes with the second gear.
The folding treadmill treadmill according to claim 2, wherein the pivoting mechanism further comprises a gear box, and both sides of the gear box are pivotally connected to the rear end of the front treadmill and the front end of the rear treadmill, respectively, The rotation of one of the front treadmill and the rear treadmill drives the rotation of the gearbox;

The first gear, the central gear set and the second gear are housed in the gear box in sequence.
The folding treadmill treadmill according to claim 1, wherein a folding space is reserved between the rear end of the front treadmill and the front end of the rear treadmill.
The folding treadmill treadmill according to claim 4, wherein the first shaft pivot passes through the gear box and then is fixedly installed in the rear end area of the front treadmill, and the second shaft pivot passes through the gear The rear of the box is fixedly installed in the front end area of the rear treadmill; the gear box is equipped with at least two central shafts for the rotatable installation of the intermediate gear set.
The folding treadmill treadmill according to claim 5, wherein the rear end of the front treadmill has a front connecting seat, the front end of the rear treadmill is provided with a rear connecting seat, and the rear connecting seat is connected to The front connecting seat structure cooperates to allow one of the front running platform and the rear running platform to rotate toward the other; the front connecting seat and the rear connecting seat integrally form a receiving slot for the gear box to pivot in it; the first pivot The two ends of the second shaft after passing through the gear box are fixed in the front connecting seat; the two ends of the second shaft pivot passing through the gear box are fixed in the rear connecting seat.
The folding treadmill treadmill according to claim 5, wherein: the first shaft and the second shaft are non-circular shafts; the first gear and the second gear are matched with the non-circular shaft A non-circular hole, both ends of the front connecting seat and the rear connecting seat have a non-circular hole matching the non-circular shaft; the first shaft is fitted in the non-circular hole of the first gear , And its two ends fit into the non-circular hole of the front connecting seat; the second shaft fits into the non-circular hole of the second gear, and its two ends fit into the non-circular hole of the rear connecting seat.
The folding treadmill treadmill according to claim 1, wherein the treadmill comprises two pivoting mechanisms, and the two pivoting mechanisms are symmetrical with respect to the central axis of the front treadmill.
The folding treadmill treadmill according to claim 4 or 6 or 7 or 8, wherein the rear area of the front treadmill is divided into two side areas a and a central area a. Two side areas a are recessed toward the front end of the front treadmill relative to the central area a to form a notch a, both of which are arranged with a front connecting seat;

The front area of the rear treadmill is divided into two side areas b and a central area b, and the two side areas b are recessed toward the rear end of the rear treadmill relative to the central area b to form a recess. Port b, both of the two notches b are arranged with rear connecting seats;

The rear end of the central area a is against the front end of the central area b, and the rear end of the front connecting seat is against the front end of the rear connecting seat;

The front connecting seat and the rear connecting seat respectively form a slot a and a slot b; the slot a and the slot b are opposite to each other and integrally form a receiving slot for the gear box to pivot in it

The front connecting seat and the rear connecting seat are positioned and matched with the positioning boss through the positioning step, and during the folding process, the positioning boss can release the cooperation with the positioning step;

The front connecting seat is provided with a first mounting hole a and a second mounting hole a opposite to each other, the two side walls of the gear box are provided with corresponding first pivot holes a and second pivot holes a, and the first mounting hole a , The second mounting hole a, the non-circular hole a, and the first pivot hole a and the second pivot hole a are arranged concentrically, and the first shaft is fitted inside;

The rear connecting seat is provided with a first mounting hole b and a second mounting hole b opposite to each other, the two side walls of the gear box are provided with corresponding first pivot holes b and second pivot holes b, and the first mounting hole b , The second mounting hole b, the non-circular hole b, and the first pivot hole b and the second pivot hole b are arranged concentrically, and the second shaft is fitted inside;

The first shaft and the second shaft extend in a direction parallel to the width of the front treadmill, and the gear box is provided with a first central shaft and a second central shaft parallel to the first shaft and the second shaft. The first sun gear and the second sun gear respectively pivot through the first central shaft and the second central shaft.